The ________ chains are structurally distinct for each immunoglobulin class.
Fill in the blank(s) with the appropriate word(s).
heavy
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Compare the molecular formula of a carbohydrate (CH2O)n with that of carbon dioxide (CO2). What does the presence of hydrogen atoms in carbohydrates indicate?
A) Carbohydrates are more reduced than carbon dioxide. B) Carbohydrates are more oxidized than carbon dioxide. C) Every carbon atom in a carbohydrate is bonded to four different atoms. D) Carbohydrates contain a carbonyl functional group.
In subarctic saltmarshes, the addition of phosphorus has no effect on productivity but additional nitrogen will increase productivity. In this example, nitrogen is a
A. stimulant of evapotranspiration. B. precursor to phosphorus. C. biomagnifying factor. D. limiting factor. E. lipid solvent.
Match the plant process or characteristic with the location in which it occurs in the cell.
A) inner membrane of mitochondria B) nucleolus C) matrix of mitochondria D) Golgi complex E) cytoplasm F) intermembrane space of mitochondria G) extracellular space H) outer membrane of mitochondria I) porins J) ribosome 1) glycolysis 2) TCA cycle 3) phospholipid synthesis 4) nucleotide phosphorylation 5) electron transport
The human body is composed of more than _______ different cells.
a. 100 b. 200 c. 400 d. 1000